|It is not clear whether you mean Word, Excel or both.|
If, when you right click a document and select "Open With" it does not give the appropriate program name (Word or Excel - whichever it is) then you use Browse to associate with the program files themselves:
Excel is Excel.exe
Word is Winword.exe
The above assumes you are set to show file extensions, if not the exe part will be missing.
If you don't know where the files are located do a search but include the .exe part.
The reason I suspect malware (#1) is because "Customer Contact No.xls.id-7599569818_europay@india" is not anything like a program and looks odd. Do you live in India?
Always pop back and let us know the outcome - thanks
message edited by Derek